CFrame positioning glitch?

Player = script.Parent.Parent
mouse = Player:GetMouse()
Doors = game.Workspace.Doors
function onKeyDown(key)

	key = key:lower()
	if key == "c" then
		wait(0.5)
		script.Disabled = true
		wait(0.5)
		Doors.DoorA.Size = Doors.DoorA.Size - Vector3.new(0,.5,0)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size - Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size - Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size - Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size - Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size - Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size - Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size - Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size - Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size - Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size - Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size - Vector3.new(0,.5,0)
		Doors.DoorA.Transparency = .2
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size - Vector3.new(0,.5,0)
		Doors.DoorA.Transparency = .5
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size - Vector3.new(0,.5,0)
		Doors.DoorA.Transparency = 1
		Doors.DoorA.CanCollide = false

		wait(2.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size + Vector3.new(0,.5,0)
		Doors.DoorA.Transparency = .2
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size + Vector3.new(0,.5,0)
		Doors.DoorA.Transparency = .5
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size + Vector3.new(0,.5,0)
		Doors.DoorA.Transparency = 0
		Doors.DoorA.CanCollide = true
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size + Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size + Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size + Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size + Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size + Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size + Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size + Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size + Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size + Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size + Vector3.new(0,.5,0)
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		Doors.DoorA.Size = Doors.DoorA.Size + Vector3.new(0,.5,0)
		Doors.DoorA.CanCollide = true
		wait(0.5)
		Doors.DoorA.Position  = Vector3.new(-2, 5.6, -14.2)
		script.Disabled = false
	elseif script.Parent.Parent.Name == "ShadowRebeller" or script.Parent.Parent.Name == "" or script.Parent.Parent.Name == ""  or script.Parent.Parent.Name == ""  or script.Parent.Parent.Name == ""  or script.Parent.Parent.Name == "" then
		local m = Instance.new("Message", game.Workspace)
		m.Text = "A banned client has joined-"..script.Parent.Parent.Name
		script.Disabled = true
		game:GetService("StarterGui"):SetCoreGuiEnabled("Chat", false)
		wait(3)
		m:Destroy()
		script.Parent.Parent.Character:Destroy()
		end
	end

mouse.KeyDown:connect(onKeyDown)

Okay so, I have it fixed for rotation, But now it teleports if an object is in the way.. Help?